Lutron Electronics Project Electrical Hardware Engineer interview questions

The first interview was a technical interview where I solved several problems. The problems were moreso about explaining my process to find the solution and what I was thinking about while solving it. While I didn't personally have any issue with the problems, one of the things the interviewer expressed was that some skills were use it or lose it, and many electrical engineers tend to gravitate towards embedded programming. I have not yet gone through the second round of interviews.

Too long of a process and it was mentally draining. 1st Round: 1 hour interview with technical questions. RC circuit analysis along with voltage-time graphs of cap. 2nd Round: 2 1.5 Hr interviews that were extensively exhausting. First interview was technical including light bulb question in series. Which has more power. Then a BJT question with capacitor. Second interview was a customer service role-play which was really odd. Overall, the first round interview was fun but to have a 3 hour 2nd round interview is exhausting and apparently theres a 3rd round for another 3 hours. They decided to not continue with my application after the 2nd round.